R08BATE TEEN. 561 



upon the nest fonnd in the momiug. The next morning fortune favored me, and, while 

 passing between several floating masses of decaying vegetable matter I observed four 

 small heaps of wild rice stalks resting upon one of these masses, and on a near view, to 

 my delight they proved to be the desired nests containing eggs. The nests were 

 situated in a line, and the two outer ones were not over twenty-five feet apart. The 

 only materials used were pieces of wild rice stems, which were obviously brought from 

 some distance, as the nearest patch of rice was several rods distant. The nests were 

 quite bulky, the bases being two feet or more in diameter. The greatest depth was 

 about eight inches, and the depression in the centre so deep that while sitting in the 

 boat a rod away the eggs were not visible. Two of the nests contained three eggs, and 

 two contained two eggs, each. The following are the measurements of three of the 

 eggs, representing the amount of Variation : 1.70 by 1.35 ; 1.75 by 1.20 and 1.60 by 1.35. 

 The ground color varies from a pale greenish to a warm brownish drab. The spots and 

 shell markings are of a varying shade of brown, distributed much as in the other small 

 Tern's eggs," 



Sterna dougaIli MoHt. 



Roseate Tem. 



Sterna paraMsea, Whkaton, Ohio Agric. Rep. for 1860, 371 ; Reprint, 1861, 13. 



Sterna paradiecea, Whbaton, Pood of Birds, etc., Ohio Agric. Rep. for 1874, 574 ; Reprint, 

 1875, 15. 



Sterna dmigalU, Langdon, Revised List, Journ. Gin. Soo. Nat. Hist., i, 1879, 187 ; Re- 

 print, 31. 



Roseate Tern, Audubon, Orn. Biog,, iii, 1835, 98; B, Am., vii, 1844, 153. 



Sterna dougalli, Montague, Orn. Diet. Suppl., 1813. 



Sterna paradisea, Ketsbrling and Blasius, Wirl. Eur,, 1840, 97. 



Bill black, usually orange at base below. Mantle very pale pearly-blue ; primaries 

 with the white band broad and usually extending to the very tip ; below, pure white, 

 or rosy-tinted ; feet coral-red. Changes of plumage as in other species. Length, 18-16 ; 

 wing, 9-10 ; tail, 5-8 ; bill, IJ-lf , very slender ; tarsas, j-}. 



Sterna macrura Naumann. 



.A.rctic Tern. 

 Sterna arcima, Kistland, Ohio Geol. Surv., 1838, 166, 185. 

 Sterna maoroura, Whbaton, Ohio Agric. Rep. for 1860, 371 ; Reprint, 1861, 13 ; Food of 



Birds, etc., Ohio Agric. Rep. for 1874, 575 ; Reprint, 1875, 15. — Ridgwat, Anu. Lye, 



N. Y., X, 1874, 393.— Langdon, Cat. Birds of Cin., 1877, 18. 

 Arctic Tern, Audubon, Orn. Biog., iii, 1835, 98; B. Am., vii, 1844, 153; Bailou, Field 



and Forest, iii, 1878, 136. 

 Sterna maorwra, Naumann, Isis, xii, 1819, 1847. 

 Sterna aretiea, Tbmminck, Man., ii, 1820, 742. 



The statement of Audubon, quoted on page 547, is the only authority for citations of 

 this as an Ohio species, except that of Mr. Ballon. On page 108 of the same volume, Audu- 

 bon says : " The Arctic Tern is foun* on the Eastesn coast of the United States only," 

 thus annulling the former statement. Mr. Nelson does not give it as a bird of Illinois, 

 nor do Ijfind any other record of its ooourrenoe in the Mississippi Valley or in the in- 

 terior ; see also Mr. Ridgway's views on page 551. 

 36 



